Introduction

• What is a “massive terrain”?

• Too big to render using brute force

• Too big to fit in RAM

• For example: Puget Sound dataset

  • Height sample every 10m, covers 160km by 160km
  • 16K x 16K x 16 bits == 512 Mtris, 512 MB
  • 32K x 32K texture – 3+ GB uncompressed; 60+ MB in JPEG format